In this section
@article{Ochoa:2026,
author = {Ochoa, Abett De La Torre T and Chaudhuri, B and O'Malley, M},
journal = {IEEE Transactions on Power Systems},
title = {Optimal Control for Robust Dynamic Performance in Inverter-Dominated Power Systems},
year = {2026}
}
TY - JOUR
AB - This paper develops a novel optimization frameworkfor synthesizing inverter-based resource (IBR) controllers to enhance robust large-signal dynamic performance in inverter-dominated power systems (IDPSs) via coordinated selection of control architectures and parameter tuning. Despite extensive research on grid-forming and grid-following control architectures, systematic control design methods that explicitly account for large-signal dynamics and robustness across a range of operating conditions and disturbances remain limited. This paper addressesthis gap by formulating a robust optimal control problem that integrates control design, dispatch, disturbance, and dynamic models within a unified min-max optimization framework. To solve the resulting problem, a solution method combining direct collocation, mesh refinement, local reduction, nonlinear programming, and electromagnetic-transient simulations is proposed, fundamentally differing from conventional power system optimization approaches. Application to the IEEE 9-bus system demonstrates that the method captures key large-signal effects with high fidelity, including nonlinear transients arising from current saturation. Moreover, results show improved robust dynamic performance relative to conventional control design practices and reveal the strong sensitivity of system behavior to control architecture allocation and parameter tuning, underscoring control design optimization as an effective mechanism for enhancing power system security, resilience, and stability.
AU - Ochoa,Abett De La Torre T
AU - Chaudhuri,B
AU - O'Malley,M
PY - 2026///
SN - 0885-8950
TI - Optimal Control for Robust Dynamic Performance in Inverter-Dominated Power Systems
T2 - IEEE Transactions on Power Systems
ER -
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